67
67
Jul 19, 2013
07/13
Jul 19, 2013
by
Carlo Giunti; Marco Laveder
texts
eye 67
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We consider the interpretation of the MiniBooNE low-energy anomaly and the Gallium radioactive source experiments anomaly in terms of short-baseline electron neutrino disappearance in the framework of 3+1 four-neutrino mixing schemes. The separate fits of MiniBooNE and Gallium data are highly compatible, with close best-fit values of the effective oscillation parameters Delta m^2 and sin^2 2 theta. The combined fit gives Delta m^2 >~ 0.1 eV^2 and 0.11 < sin^2 2 theta < 0.48 at 2 sigma....
Source: http://arxiv.org/abs/1005.4599v4
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58
Jul 20, 2013
07/13
Jul 20, 2013
by
Carlo Giunti; Marco Laveder
texts
eye 58
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We present the results of fits of short-baseline neutrino oscillation data in 3+1 and 3+2 neutrino mixing schemes. In spite of the presence of a tension in the interpretation of the data, 3+1 neutrino mixing is attractive for its simplicity and for the natural correspondence of one new entity (a sterile neutrino) with a new effect (short-baseline oscillations). The allowed regions in the oscillation parameter space can be tested in near-future experiments. In the framework of 3+2 neutrino...
Source: http://arxiv.org/abs/1107.1452v3
98
98
Jul 20, 2013
07/13
Jul 20, 2013
by
Carlo Giunti
texts
eye 98
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It is shown that at least four massive neutrinos are needed in order to accommodate the evidences in favor of neutrino oscillations found in solar and atmospheric neutrino experiments and in the LSND experiment. Among all four-neutrino schemes, only two, with a mass spectrum composed of two pairs of neutrinos with close masses separated by the "LSND gap" of the order of 1 eV, are compatible with the results of all neutrino oscillation experiments. In these two schemes the probability...
Source: http://arxiv.org/abs/hep-ph/9910336v1
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50
Jul 22, 2013
07/13
Jul 22, 2013
by
Carlo Giunti
texts
eye 50
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Comment on P. Walker, Nature 453 (2008) 864, http://www.nature.com/nature/journal/v453/n7197/full/453864a.html
Source: http://arxiv.org/abs/0807.3818v1
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49
Sep 17, 2013
09/13
Sep 17, 2013
by
Mario A. Acero; Carlo Giunti; Marco Laveder
texts
eye 49
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The deficit observed in the Gallium radioactive source experiments is interpreted as a possible indication of the disappearance of electron neutrinos. In the effective framework of two-neutrino mixing we obtain $\sin^{2}2\vartheta \gtrsim 0.03$ and $\Delta{m}^{2} \gtrsim 0.1 \text{eV}^{2}$. The compatibility of this result with the data of the Bugey and Chooz reactor short-baseline antineutrino disappearance experiments is studied. It is found that the Bugey data present a hint of neutrino...
Source: http://arxiv.org/abs/0711.4222v3
39
39
Sep 18, 2013
09/13
Sep 18, 2013
by
Carlo Giunti
texts
eye 39
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We review some fundamental aspects of the theory of neutrino masses and mixing. The results of neutrino oscillation experiments are interpreted as evidence of three-neutrino mixing. Implications for the mixing parameters and the neutrino masses are discussed, with emphasis on the connection with the measurements of the absolute values of neutrino masses in beta decay and neutrinoless double-beta decay experiments and cosmological observations.
Source: http://arxiv.org/abs/hep-ph/0611125v1
109
109
Sep 18, 2013
09/13
Sep 18, 2013
by
Carlo Giunti
texts
eye 109
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We review critically the main assumptions on which the standard theory of neutrino oscillations is based. We show that all assumptions are realistic, except the so-called "equal momentum assumption", which however is irrelevant. We briefly review the covariant plane-wave derivation of neutrino oscillations and a quantum field theoretical wave packet model of neutrino oscillations. We show that both approaches lead to the standard expression for the oscillation phase. The wave packet...
Source: http://arxiv.org/abs/hep-ph/0401244v1
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59
Sep 18, 2013
09/13
Sep 18, 2013
by
Carlo Giunti; Marco Laveder
texts
eye 59
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The anomalous excess of low-energy nu_e events measured in the MiniBooNE experiment is explained through a renormalization of the absolute neutrino flux and a simultaneous disappearance of the nu_e's in the beam, which is compatible with that indicated by the results of Gallium radioactive source experiments. We present the results of the fit of MiniBooNE data (P(nu_e->nu_e) = 0.64 +0.08 -0.07) and the combined fit of MiniBooNE data and the nu_e disappearance measured in the Gallium...
Source: http://arxiv.org/abs/0707.4593v3
53
53
Sep 19, 2013
09/13
Sep 19, 2013
by
Carlo Giunti; Marco Laveder
texts
eye 53
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We analyze the recent results of the MiniBooNE short-baseline experiment on antinu_mu -> antinu_e oscillations in a minimal model-independent framework of antineutrino mixing in conjunction with the positive LSND signal and the negative KARMEN measurements. We show that the data of the three short-baseline antinu_mu -> antinu_e experiments are compatible. Taking into account also the model-independent constraints due to the limits on short-baseline antinu_e disappearance obtained in...
Source: http://arxiv.org/abs/1010.1395v2
46
46
Sep 19, 2013
09/13
Sep 19, 2013
by
Carlo Giunti
texts
eye 46
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General arguments in favor of the necessity of a wave packet description of neutrino oscillations are presented, drawing from analogies with other wave phenomena. We present a wave packet description of neutrino oscillations in stationary beams using the density matrix formalism. Recent claims of the necessity of an equal energy of different massive neutrinos are refuted.
Source: http://arxiv.org/abs/hep-ph/0302026v3
42
42
Sep 19, 2013
09/13
Sep 19, 2013
by
Carlo Giunti; Marco Laveder
texts
eye 42
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We suggest the possibility that the anomalies observed in the LSND experiment and the Gallium radioactive source experiments may be due to neutrino oscillations generated by a large squared-mass difference of about 20 - 30 eV^2. We consider the simplest 3+1 four-neutrino scheme that can accommodate also the observed solar and atmospheric neutrino oscillations. We show that, in this framework, the disappearance of nu_e and nu_mu in short-baseline neutrino oscillation experiments is mainly due to...
Source: http://arxiv.org/abs/hep-ph/0610352v2
50
50
Sep 19, 2013
09/13
Sep 19, 2013
by
Carlo Giunti
texts
eye 50
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We consider the scheme with mixing of three neutrinos and a mass hierarchy. We shown that, under the natural assumptions that massive neutrinos are Majorana particles and there are no unlikely fine-tuned cancellations among the contributions of the different neutrino masses, the results of solar neutrino experiments imply a lower bound for the effective Majorana mass in neutrinoless double-beta decay. We also discuss briefly neutrinoless double-beta decay in schemes with mixing of four...
Source: http://arxiv.org/abs/hep-ph/9912427v1
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66
Sep 19, 2013
09/13
Sep 19, 2013
by
Carlo Giunti
texts
eye 66
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We consider the two four-neutrino schemes that are compatible with all neutrino oscillation data. We present the range of the corresponding mixing parameters allowed by the results of neutrino oscillation experiments. We discuss the implications for long-baseline experiments and we suggest the possibility to reveal the presence of CP-violating phases through a comparison of the oscillation probability measured in long-baseline experiments with the corresponding average oscillation probability...
Source: http://arxiv.org/abs/hep-ph/9912211v1
41
41
Sep 20, 2013
09/13
Sep 20, 2013
by
Maria Archidiacono; Nicolao Fornengo; Carlo Giunti; Alessandro Melchiorri
texts
eye 41
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Recent results from short--baseline neutrino oscillation experiments and Cosmic Microwave Background anisotropy measurements suggest the presence of additional sterile neutrinos. In this paper we properly combine these data sets to derive bounds on the sterile neutrino masses in the 3+1 and 3+2 frameworks, finding a potentially good agreement between the two datasets. However, when galaxy clustering is included in the analysis a tension between the oscillation and cosmological data is clearly...
Source: http://arxiv.org/abs/1207.6515v1
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51
Sep 20, 2013
09/13
Sep 20, 2013
by
Carlo Giunti
texts
eye 51
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The definition and derivation of flavor neutrino states in the framework of standard Quantum Field Theory is reviewed, clarifying some subtle points. It is shown that a flavor neutrino state that describes a neutrino produced or detected in a charged-current weak interaction process depends on the process under consideration and is appropriate for the description of neutrino oscillations as well as for the calculation of neutrino production or detection rates. Hence, we have a consistent...
Source: http://arxiv.org/abs/hep-ph/0608070v2
41
41
Sep 21, 2013
09/13
Sep 21, 2013
by
Carlo Giunti; Marco Laveder
texts
eye 41
favorite 0
comment 0
We analyzed the electron neutrino data of the Gallium radioactive source experiments and the electron antineutrino data of the reactor Bugey and Chooz experiments in terms of neutrino oscillations allowing for a CPT-violating difference of the squared-masses and mixings of neutrinos and antineutrinos. We found that the discrepancy between the disappearance of electron neutrinos indicated by the data of the Gallium radioactive source experiments and the limits on the disappearance of electron...
Source: http://arxiv.org/abs/1008.4750v1
62
62
Sep 21, 2013
09/13
Sep 21, 2013
by
Carlo Giunti
texts
eye 62
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comment 0
The claims that the GSI time anomaly is due to the mixing of neutrinos in the final state of the observed electron-capture decays of hydrogen-like heavy ions are refuted with the help of an analogy with a double-slit experiment. It is a consequence of causality. It is shown that the GSI time anomaly may be caused by quantum beats due to the existence of two coherent energy levels of the decaying ion with an extremely small energy splitting (about $6\times10^{-16} \text{eV}$) and relative...
Source: http://arxiv.org/abs/0905.4620v1
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44
Sep 21, 2013
09/13
Sep 21, 2013
by
Carlo Giunti
texts
eye 44
favorite 0
comment 0
It is shown that a flavor neutrino state that describes a neutrino produced or detected in a charged-current weak interaction process depends on the process under consideration and is appropriate for the description of neutrino oscillations as well as for the calculation of neutrino production or detection rates. Hence, we have a consistent framework for the description of neutrino oscillations and interactions.
Source: http://arxiv.org/abs/hep-ph/0402217v1
59
59
Sep 21, 2013
09/13
Sep 21, 2013
by
Carlo Giunti
texts
eye 59
favorite 0
comment 0
We review critically the main assumptions on which the standard theory of neutrino oscillations is based. We show that all assumptions are realistic, except the so-called "equal momentum assumption", which however is irrelevant. We conclude that the standard expression for the probability of neutrino oscillations is robust.
Source: http://arxiv.org/abs/hep-ph/0311241v2
40
40
Sep 21, 2013
09/13
Sep 21, 2013
by
Carlo Giunti
texts
eye 40
favorite 0
comment 0
After a brief review of the results of solar, atmospheric and long-baseline neutrino oscillation experiments which led to the current three-neutrino mixing paradigm, we discuss indications of neutrino oscillation experiments in favor of short-baseline oscillations which require the existence of one or more sterile neutrinos. We show that the simplest possibility of existence of one sterile neutrino is not enough to fit all data of short-baseline neutrino oscillation experiments because of two...
Source: http://arxiv.org/abs/1106.4479v1
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53
Sep 21, 2013
09/13
Sep 21, 2013
by
Carlo Giunti; Marco Laveder
texts
eye 53
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comment 0
We consider possible indications of Very-Short-BaseLine (VSBL) electron neutrino disappearance into sterile neutrinos in MiniBooNE neutrino data and Gallium radioactive source experiments. We discuss the compatibility of such a disappearance with reactor and MiniBooNE antineutrino data. We find a tension between neutrino and antineutrino data which could be due to: 1) statistical fluctuations; 2) underestimate of systematic uncertainties; 3) exclusion of our hypothesis of VSBL nu_e...
Source: http://arxiv.org/abs/0902.1992v2
57
57
Sep 22, 2013
09/13
Sep 22, 2013
by
Carlo Giunti; Marco Laveder
texts
eye 57
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In this review we present the main features of the current status of neutrino physics. After a review of the theory of neutrino mixing and oscillations, we discuss the current status of solar and atmospheric neutrino oscillation experiments. We show that the current data can be nicely accommodated in the framework of three-neutrino mixing. We discuss also the problem of the determination of the absolute neutrino mass scale through Tritium beta-decay experiments and astrophysical observations,...
Source: http://arxiv.org/abs/hep-ph/0310238v2
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62
Sep 22, 2013
09/13
Sep 22, 2013
by
Maria Archidiacono; Nicolao Fornengo; Carlo Giunti; Steen Hannestad; Alessandro Melchiorri
texts
eye 62
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Cosmology and short baseline neutrino oscillation data both hint at the existence of light sterile neutrinos with masses in the 1 eV range. Here we perform a detailed analysis of the sterile neutrino scenario using both cosmological and SBL data. We have additionally considered the possibility that the extra neutrino degrees of freedom are not fully thermalised in the early universe. Even when analyzing only cosmological data we find a preference for the existence of massive sterile neutrinos...
Source: http://arxiv.org/abs/1302.6720v2
43
43
Sep 22, 2013
09/13
Sep 22, 2013
by
Carlo Giunti
texts
eye 43
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comment 0
After a short review of the current status of three-neutrino mixing, the implications for the values of neutrino masses are discussed. The bounds on the absolute scale of neutrino masses from Tritium beta-decay and cosmological data are reviewed. Finally, we discuss the implications of three-neutrino mixing for neutrinoless double-beta decay.
Source: http://arxiv.org/abs/hep-ph/0308206v1
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46
Sep 22, 2013
09/13
Sep 22, 2013
by
Roland M. Crocker; Carlo Giunti; and Daniel J. Mortlock
texts
eye 46
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Gravitational lensing introduces the possibility of multiple (macroscopic) paths from an astrophysical neutrino source to a detector. Such a multiplicity of paths can allow for quantum mechanical interference to take place that is qualitatively different to neutrino oscillations in flat space. After an illustrative example clarifying some under-appreciated subtleties of the phase calculation, we derive the form of the quantum mechanical phase for a neutrino mass eigenstate propagating...
Source: http://arxiv.org/abs/hep-ph/0308168v2
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41
Sep 22, 2013
09/13
Sep 22, 2013
by
Carlo Giunti
texts
eye 41
favorite 0
comment 0
The claims that the GSI time anomaly is due to the mixing of neutrinos in the final state of the observed electron-capture processes are refuted. With the help of an analogy with a double-slit experiment, it is shown that the standard method of calculation of the rate of an interaction process by adding the rates of production of all the allowed final states, regardless of a possible coherence among them, is correct. It is a consequence of causality. It is shown that the GSI time anomaly may be...
Source: http://arxiv.org/abs/0812.1887v1
88
88
Sep 22, 2013
09/13
Sep 22, 2013
by
Carlo Giunti; Alexander Studenikin
texts
eye 88
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comment 0
The main goal of the paper is to give a short review on neutrino electromagnetic properties. In the introductory part of the paper a summary on what we really know about neutrinos is given: we discuss the basics of neutrino mass and mixing as well as the phenomenology of neutrino oscillations. This is important for the following discussion on neutrino electromagnetic properties that starts with a derivation of the neutrino electromagnetic vertex function in the most general form, that follows...
Source: http://arxiv.org/abs/0812.3646v5
43
43
Sep 22, 2013
09/13
Sep 22, 2013
by
Carlo Giunti
texts
eye 43
favorite 0
comment 0
With the help of an analogy with a double-slit experiment, it is shown that the standard method of calculation of the rate of an interaction process by adding the rates of production of all the allowed final states, regardless of a possible coherence among them, is correct. It is a consequence of causality. The claims that the GSI time anomaly is due to the mixing of neutrinos in the final state of the electron-capture process are refuted. It is shown that the GSI time anomaly may be due to...
Source: http://arxiv.org/abs/0805.0431v1
42
42
Sep 22, 2013
09/13
Sep 22, 2013
by
Carlo Giunti
texts
eye 42
favorite 0
comment 0
It is shown that the Majorana phases of the neutrino mixing matrix cannot have any effect in neutrino oscillations, contrary to the argument presented in arXiv:0912.5266. It is also shown that in a charged-current weak interaction process it is not possible to create a coherent superposition of different flavor neutrinos which is independent of the associated charged leptons.
Source: http://arxiv.org/abs/1001.0760v2
57
57
Sep 22, 2013
09/13
Sep 22, 2013
by
Carlo Giunti
texts
eye 57
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The experimental evidences in favor of oscillations of solar (and KamLAND) and atmospheric (and K2K) neutrinos are briefly reviewed and accommodated in the framework of three-neutrino mixing. The implications for the values of neutrino masses are discussed and the bounds on the absolute scale of neutrino masses from Tritium beta-decay and cosmological data are reviewed. Finally, we discuss the implications of three-neutrino mixing for neutrinoless double-beta decay.
Source: http://arxiv.org/abs/hep-ph/0309024v1
72
72
Sep 22, 2013
09/13
Sep 22, 2013
by
Carlo Giunti
texts
eye 72
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We present a derivation of the flavor neutrino states which describe neutrinos produced or detected in charged-current weak-interaction processes, including those operating in neutrino oscillation experiments. We also present a covariant derivation of the probability of neutrino oscillations which is consistent with the fact that flavor is Lorentz-invariant. Finally, we clarify the negative answers to three commonly asked questions: "Do charged leptons oscillate?"; "Is the...
Source: http://arxiv.org/abs/hep-ph/0409230v1
57
57
Sep 23, 2013
09/13
Sep 23, 2013
by
Carlo Giunti
texts
eye 57
favorite 0
comment 0
It is shown that at least four massive neutrinos are needed in order to accommodate the evidences in favor of neutrino oscillations found in solar and atmospheric neutrino experiments and in the LSND experiment. Among all four-neutrino schemes, only two are compatible with the results of all neutrino oscillation experiments. These two schemes have a mass spectrum composed of two pairs of neutrinos with close masses separated by the "LSND gap" of the order of 1 eV.
Source: http://arxiv.org/abs/hep-ph/9909465v1
55
55
Sep 23, 2013
09/13
Sep 23, 2013
by
Carlo Giunti
texts
eye 55
favorite 0
comment 0
It is shown that at least four massive neutrinos are needed in order to accommodate the evidences in favor of neutrino oscillations found in solar and atmospheric neutrino experiments and in the LSND experiment. Among all four-neutrino schemes, only two are compatible with the results of all neutrino oscillation experiments. These two schemes have a mass spectrum composed of two pairs of neutrinos with close masses separated by the "LSND gap" of the order of 1 eV.
Source: http://arxiv.org/abs/hep-ph/9909395v1
56
56
Sep 23, 2013
09/13
Sep 23, 2013
by
Carlo Giunti
texts
eye 56
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It is shown that it is possible to construct an infinity of Fock spaces of flavor neutrinos depending on arbitrary unphysical mass parameters, in agreement with the theory of Blasone and Vitiello in the version proposed by Fujii, Habe and Yabuki. However, we show that these flavor neutrino Fock spaces are clever mathematical constructs without physical relevance, because the hypothesis that neutrinos produced or detected in charged-current weak interaction processes are described by flavor...
Source: http://arxiv.org/abs/hep-ph/0312256v2
48
48
Sep 23, 2013
09/13
Sep 23, 2013
by
Carlo Giunti
texts
eye 48
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I refute the criticisms of hep-ph/0311241 raised in hep-ph/0312151.
Source: http://arxiv.org/abs/hep-ph/0312180v2
47
47
Sep 23, 2013
09/13
Sep 23, 2013
by
Jostein R. Kristiansen; Øystein Elgarøy; Carlo Giunti; Marco Laveder
texts
eye 47
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There are hints, both from cosmology and from neutrino oscillation experiments, that one or two sterile neutrinos with eV masses are favored. We consider the implications of combining data from short baseline neutrino experiments with cosmological observations. In particular we consider cosmological models where the equation of state of dark energy and the curvature are allowed to vary. We find that the consistency of results from short baseline experiments and cosmology is dependent on the...
Source: http://arxiv.org/abs/1303.4654v1
84
84
Sep 23, 2013
09/13
Sep 23, 2013
by
Alessandro Mirizzi; Gianpiero Mangano; Ninetta Saviano; Enrico Borriello; Carlo Giunti; Gennaro Miele; Ofelia Pisanti
texts
eye 84
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Light sterile neutrinos can be excited by oscillations with active neutrinos in the early universe. Their properties can be constrained by their contribution as extra-radiation, parameterized in terms of the effective number of neutrino species N_ eff, and to the universe energy density today \Omega_\nu h^2. Both these parameters have been measured to quite a good precision by the Planck satellite experiment. We use this result to update the bounds on the parameter space of (3+1) sterile...
Source: http://arxiv.org/abs/1303.5368v2
50
50
Sep 23, 2013
09/13
Sep 23, 2013
by
Carlo Giunti; Marco Laveder
texts
eye 50
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We present an update of our analysis of short-baseline neutrino oscillation data in the framework of 3+1 neutrino mixing taking into account the recent update of MiniBooNE antineutrino data and the recent results of the MINOS search for nu_mu disappearance into sterile neutrinos (the more complicated 3+2 neutrino mixing is not needed since the CP-violating difference between MiniBooNE neutrino and antineutrino data has diminished). The results of our fits of short-baseline neutrino oscillation...
Source: http://arxiv.org/abs/1109.4033v2
47
47
Sep 23, 2013
09/13
Sep 23, 2013
by
Carlo Giunti
texts
eye 47
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The main aspects of the phenomenology of absolute neutrino masses are reviewed, focusing on the limits on neutrino masses obtained in tritium beta decay experiments, cosmological observations and neutrinoless double-beta decay experiments.
Source: http://arxiv.org/abs/hep-ph/0511131v1
63
63
Sep 23, 2013
09/13
Sep 23, 2013
by
Carlo Giunti; Marco Laveder
texts
eye 63
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We analyze the LSND, KARMEN and MiniBooNE data on short-baseline antinu_mu -> antinu_e oscillations and the data on short-baseline antinu_e disappearance obtained in the Bugey-3 and CHOOZ reactor experiments in the framework of 3+1 antineutrino mixing, taking into account the MINOS observation of long-baseline antinu_mu disappearance and the KamLAND observation of very-long-baseline antinu_e disappearance. We show that the fit of the data implies that the short-baseline disappearance of...
Source: http://arxiv.org/abs/1012.0267v3
38
38
Sep 23, 2013
09/13
Sep 23, 2013
by
Carlo Giunti; Marco Laveder
texts
eye 38
favorite 0
comment 0
We analyzed the electron neutrino data of the Gallium radioactive source experiments and the electron antineutrino data of the reactor Bugey and Chooz experiments in terms of neutrino oscillations. We found a hint of a CPT-violating asymmetry of the effective neutrino and antineutrino mixing angles.
Source: http://arxiv.org/abs/1012.4356v1
97
97
Sep 23, 2013
09/13
Sep 23, 2013
by
Carlo Giunti; Marco Laveder
texts
eye 97
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We investigate the possible effects of short-baseline antinu_e disappearance implied by the reactor antineutrino anomaly on the Double-Chooz determination of theta_{13} through the normalization of the initial antineutrino flux with the Bugey-4 measurement. We show that the effects are negligible and the value of theta_{13} obtained by the Double-Chooz collaboration is accurate only if Delta m^2_{41} is larger than about 3 eV^2. For smaller values of Delta m^2_{41} the short-baseline...
Source: http://arxiv.org/abs/1111.5211v2
52
52
Sep 23, 2013
09/13
Sep 23, 2013
by
Carlo Giunti; Marco Laveder
texts
eye 52
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We present an upgrade of the 3+1 global fit of short-baseline neutrino oscillation data obtained with the addition of KARMEN and LSND nu_e-Carbon scattering data. We discuss the implications for the measurements of the effective neutrino mass in beta-decay and neutrinoless double-beta-decay experiments. We find respective predicted ranges of about 0.1-0.7 eV and 0.01-0.1 eV.
Source: http://arxiv.org/abs/1111.1069v2
66
66
Sep 23, 2013
09/13
Sep 23, 2013
by
Carlo Giunti; Marco Laveder
texts
eye 66
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We calculate the statistical significance of the anomalous deficit of electron neutrinos measured in the radioactive source experiments of the GALLEX and SAGE solar neutrino detectors taking into account the uncertainty of the detection cross section. We found that the statistical significance of the anomaly is about 3.0 sigma. A fit of the data in terms of neutrino oscillations favors at about 2.7 sigma short-baseline electron neutrino disappearance with respect to the null hypothesis of no...
Source: http://arxiv.org/abs/1006.3244v3
110
110
Sep 23, 2013
09/13
Sep 23, 2013
by
Carlo Giunti; Alexander Studenikin
texts
eye 110
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A short review on electromagnetic properties of neutrinos is presented. In spite of many efforts in the theoretical and experimental studies of neutrino electromagnetic properties, they still remain one of the main puzzles related to neutrinos.
Source: http://arxiv.org/abs/1006.1502v1
54
54
Sep 23, 2013
09/13
Sep 23, 2013
by
Carlo Giunti
texts
eye 54
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The indications in favor of short-baseline neutrino oscillations, which require the existence of one or more sterile neutrinos, are reviewed. In the framework of 3+1 neutrino mixing, which is the simplest extension of the standard three-neutrino mixing which can partially explain the data, there is a strong tension in the interpretation of the data, mainly due to an incompatibility of the results of appearance and disappearance experiments. In the framework of 3+2 neutrino mixing, CP violation...
Source: http://arxiv.org/abs/1110.3914v1
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38
Sep 23, 2013
09/13
Sep 23, 2013
by
David Dooling; Carlo Giunti; Kyungsik Kang; Chung W. Kim
texts
eye 38
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We present a formalism for the description of oscillations in matter of solar, atmospheric and long-baseline neutrinos in the two schemes of four-neutrino mixing that are allowed by the results of all existing neutrino oscillation experiments.
Source: http://arxiv.org/abs/hep-ph/9908513v1
93
93
Sep 23, 2013
09/13
Sep 23, 2013
by
Carlo Giunti
texts
eye 93
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It is shown that neutrino mixing cannot explain the GSI time anomaly, refuting recent claims in this direction. Addendum 1: Remarks on arXiv:0801.1465. Addendum 2: Quantum effects in GSI nuclear decay.
Source: http://arxiv.org/abs/0801.4639v3
58
58
Sep 23, 2013
09/13
Sep 23, 2013
by
Carlo Giunti
texts
eye 58
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The standard theory of neutrino oscillations is reviewed, highlighting the main assumptions: the definition of the flavor states, the equal-momentum assumption and the time = distance assumption. It is shown that the standard flavor states are correct approximations of the states that describe neutrinos in oscillation experiments. The equal-momentum assumption is shown to be unnecessary for the derivation of the oscillation probability. The time = distance assumption derives from the...
Source: http://arxiv.org/abs/0801.0653v1
42
42
Sep 24, 2013
09/13
Sep 24, 2013
by
Carlo Giunti
texts
eye 42
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The phenomenology of absolute neutrino masses is reviewed, focusing on tritium beta decay, cosmological measurements and neutrinoless double-beta decay.
Source: http://arxiv.org/abs/hep-ph/0412148v1
